Questionthe inverse of a mapping $f$ exists if $f$ is الإجابة a. onto mapping b. one to one mapping c. fixed mapping d. one to one and onto mapping

Studdy Solution
Analyze each option: - **Option a:** Onto mapping alone is not sufficient for an inverse to exist. - **Option b:** One-to-one mapping alone is not sufficient for an inverse to exist. - **Option c:** Fixed mapping is not a standard term relevant to the existence of an inverse. - **Option d:** One-to-one and onto mapping (bijective) is the correct condition for the existence of an inverse.
The correct answer is:
$$\text{d. one to one and onto mapping}$$